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mass
'no magic to the mole'
amount
molar mass
concentration
solution volume
gas volume
molar gas volume
Avogadro
constant, L
number of
entities, N
Now try the following question.
D9. SKELETAL FORMULAE
Finally, it is worth being aware of yet a further term which has become ubiquitous within organic chemistry.
A Skeletal Formula is effectively chemical shorthand and was developed by the famous organic chemist Friedrich August Kekulé von Stradonitz (aka Kekulé) 1829-1896.
Carbon and hydrogen atoms are not shown explicitly. A skeletal formula depicts just the skeleton structure that enables the 3-D molecular structure to be inferred unambiguously. Other atoms like O, N and S are shown plus H atoms as constituents of OH groups, for example. Some simple skeletal structures are shown below along with their molecular constitutions.
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